I'm working on a spring boot graphql project where my mutation takes a complex input type. My BookInput is an interface and I get a concrete implementation at run time like BookInputImpl ( We can assume there are no other implementations for the interface ).

@MutationMapping
public Book createBook(@Argument BookInput bookInput) {
    return bookService.createBook( bookInput );
}

However, when sent a request from postman I receive an exception stating single or unique constructor expected for my interface BookInput.

Is there any workaround to use interface because i want to accept interface and dont want any reference to my implementation.